CN1119044C - Apparatus and method for configuring data channel for symmetric/asymmetric data transmission - Google Patents

Abstract

A system for configuring signaling messages in a telecommunications system when setting up the data transmission rates on the forward and reverse links for data transmission on a variable rate symmetric/asymmetric data channel, so as to shorten the time and signal length required in the connection setup of such a system and to reduce the demand on processing resources and processing time in both the mobile and the base stations. An information record contained in a signaling message, such as a Service Request Message, a Service Response Message, a Service Connect, or a Status Response Message, that is used to to setup the forward and reverse links of the data channel, is provided with an ASYMMETRIC-RATES bit field. In the case when both forward and reverse links are indicated in a service type message to use the same rate configuration, i.e., the same link setup parameters, the ASYMMETRIC-RATES bit, i.e., the bit in the ASYMMETRIC-RATES field in the signaling message, is set to one binary value, e.g., '0', to indicate that the same rate configuration is used for both directions. Then only one rate configuration is encoded in the service type message and the message is considerably shortened saving time and reducing complexity. The ASYMMETRIC-RATES bit field may be used to advantage in other message applications.

Description

Shorten the signal message time and the system and method for signal length, the Apparatus and method for of configuration data channel

The application adopts and relates in people's such as Z-C.HONKASALO the United States serial 60/025183 and the disclosed technology in the application of not examining of the general transfer of the United States serial 08/711535 of United States serial 08/712309 and J.NONEMAN, and its theme at this as a reference.

The present invention relates to telecommunication system, and relate more specifically in telecommunication system, provide the equipment and the method for the link establishment signaling message that reduces length with variable bit rate symmetry/asymmetric data channel.

Development in field of telecommunications has produced can be by various types of telecommunication systems of general public's use.Among these telecommunication systems, cellular phone network is one of at present the most fast-developing network with regard to the technology that is provided with regard to business.Cellular network is extensive use of in the whole world at present, in a foreseeable future has the sale of expection and user's sustainable growth.

The technology of several types has become main flow in the honeycomb industrial quarters.In the U.S., most of cellular systems of operation at present use the analog signal transmission technology, as by telecommunications industry association/electronic industries association (TIA/EIA) AMPS prescribed by standard, perhaps use the combination of simulation and time division multiple access (TDMA) signal transmission technology, as by TIA/EIA IS-54 and IS-136 prescribed by standard.In Europe, cellular system can be according to the operation of one of several analogue system standards, and this depends on each country, perhaps according to operating for digital mobile world business (GSM) the TDMA standard of Europe regulation.Other some areas in the world, most of cellular systems are according to the U.S. or the employed standard operation in Europe, except having developed in Japan and having used TDMA individual digital communication (PDC) standard.Yet no matter simulation and the present advantage of TDMA technology are how, honeycomb industry changes, and alternative as these present major techniques developed on new technology positive stabilization ground.An Alternative digital signal transmission technology that recently has been the cellular system focus is called code division multiple access (CDMA).In cdma system, each user utilizes a plurality of users by the channel of the digital code identification of unique appointment when sharing same broader frequency spectrum and system communication.CDMA provides several advantages for the simulation or the tdma system of routine.For example, cdma system does not require the mobile radio station (MS) of mesh and the spectrum allocation may plan of base station (BS), and simulation and tdma system require so, because all cdma base stations are shared whole downlink spectrum, and all mobile radio stations are shared whole uplink spectrum.The fact by all up links or the shared broader frequency spectrum of downlink user in CDMA also increases capacity, this is because can carry out the restriction that multiplexed number of users is not subjected to available radio-frequency channel quantity simultaneously, but be can be used for the restriction of digital code of unique communication channel of recognition system.In addition, because the signal energy that is sent is expanded,, the frequency of selecting do not influence whole C DMA signal on wideband uplink or downlink band so declining.Path diversity also is provided in cdma system.If many propagation path exists, then as long as path delay, difference was no more than 1/BW, this mulitpath just can separate, and wherein BW equals the bandwidth of transmission link.An example of the cellular system CDMA standard of accepting extensively is a TIA/EIA IS-95-A system specifications.

Because data transmission applications rather than conventional voice service are transmitted in wireless or cellular system becomes important in regional just day by day,, or replace voice service so the cellular system operator may wish to provide other business with the phone voice service in system.These other professional example comprises portable computer cellular modem business or video traffic or also may comprise the similar business of grouped data.Usually, these other business may require data to send than the faster speed of the desired speed of speech transmissions.Therefore, hope provides in cellular system under the situation of different business scope, message transmission rate in the change system is useful, so that data rate can change in the desired scope of all system business, so that provide slower speed data to transmit and provide high speed data transfer for grouped data and other application for effective and reliable voice service.For example, the cdma system maximum data rate of restriction IS-95-A regulation is per second 9600 bits (9.6kbps), and may wish in the IS-95-A system, to provide the business of requirement, also be desirable to provide different pieces of information speed is used in permission on every forward direction (base station is to mobile radio station) and reverse (mobile radio station is to the base station) link business greater than the transfer of data of 9.6kbps speed.These identical business also are useful in the system such as the other types of tdma system.

In high-speed data and packet data application, during connecting foundation, need to exchange many information of relevant rate configuration.This foundation may require to comprise the big signaling message of forward direction and reverse link rate configuration.For example, the present IS-95 code requirement forward direction and the rate configuration of reverse link are independently encoded, and this requires independent field a large amount of in the signaling information.As a result, connect the problem that proposes relevant time and signal length of setting up.And a large amount of independent field of setting up in the signaling message require more to handle in mobile radio station and base station.

Therefore, an object of the present invention is in wireless or cell phone system, to provide the high data rate business of improvement such as cdma system.

Another object of the present invention provide shortening such system connect set up in the equipment and the method for required time and signal length.

A further object of the invention be reduce such system connect set up in the quantity of desired independent field in the employed signal message, and reduce the desired processing resource and the demand in processing time in mobile radio station and base station.

Another object of the present invention is: when the forward direction of data channel and reverse link use same data rate configuration, provide the link establishment signaling message that reduces length in the system with variable speed symmetry/asymmetric data channel.

The present invention is directed to when on the forward direction of variable transfer of data and reverse link, setting up message transmission rate, the equipment and the method for configuration signal message are provided in telecommunication system, connect required time and signal length in the foundation so that shorten, and reduce and in mobile radio station and base station, handle the resource and the demand in processing time in such system.In a preferred embodiment, the present invention includes a message format, when the rate configuration content of two links is identical, the rate configuration of avoid in the specific field of signaling message, encoding dividually forward direction and reverse link.It utilizes such fact: promptly identical when setting up parameter when forward direction and reverse link use identical rate configuration, can utilize if represent the alternate manner of this situation, and then needn't transmit the rate information that duplicates.According to the present invention, asymmetric speed bit field is included in the request for building link message, and when forward direction and reverse link use identical rate configuration, and asymmetric speed ratio is ad hoc to be changed to 1 binary value, for example " O ", the identical rate configuration of expression both direction request.Subsequently, have only a rate configuration in this message, to encode.This coding shortens message significantly, therefore saves time and reduces complexity.Use the situation of different rate configuration for forward direction and reverse link, ad hoc another binary value that is changed to of asymmetric speed ratio in the signaling message, i.e. " 1 ", the two kinds of different rate configuration of coding of indicating in signaling message, and must comprise two kinds of configurations, be conventional length thereby make message-length.Yet net effect of the present invention is that the connection that improves in the variable-speed data transmitting telecommunication system is set up, and the use of asymmetric speed bit may be favourable in other messages application.

By understanding equipment of the present invention and method more comprehensively, wherein with reference to the following detailed description of reading in conjunction with the accompanying drawings:

Fig. 1 is that expression can be suitable for adopting the block diagram according to the telecommunication system of the embodiment of the invention;

Fig. 2 A is expression sends the transmitter/modulator part of variable velocity data on the reverse link of Fig. 1 system according to the embodiment of the invention a schematic block diagram;

Fig. 2 B is the block diagram of function of the CC/INT piece of more detailed presentation graphs 2A;

Fig. 2 C is expression sends the receiver/demodulator part of variable-speed data on the reverse link of the system of Fig. 1 according to the embodiment of the invention a schematic block diagram;

Fig. 3 A and 3B are the sequential chart of expression according to transmitter/modulator operation with the receiver/demodulator operation of the embodiment of the invention shown in Fig. 2 A-2C;

Fig. 4 A and 4B are the schematic block diagrams of representing to send on the forward link according to the embodiment of the invention transmitter/modulator and the receiver/demodulator part of variable-speed data respectively; With

Fig. 5 A and 5B are the figure that represents to be used in an embodiment of the present invention the Frame configuration transmitted.

The present invention includes a kind of apparatus and method for, when on the forward direction of variable data transmission and reverse link, setting up message transmission rate, set up required time and signal length by connecting in the configuration signal information shortening telecommunication system, so that use identical rate configuration at forward direction and reverse link, be identical when setting up parameter, the rate configuration of in signaling message, only encoding.Briefly, this improvement is to utilize non-in the request for building link message that the symmetrical rate bit field is obtained.Yet,, provide following description in order to understand content and the feature of implementing apparatus and method for of the present invention fully.

One group of functional unit in the telecommunication system 1 that Fig. 1 represents to constitute in the mode that is suitable for embodiment of the invention employing.Telecommunication system 1 can be any phone or the wireless system that sends message between applicable to two stations that exchange messages according to the present invention.Preferred embodiment is implemented and will be described in conjunction with this cell phone system in having the cell phone system of base station and mobile radio station.Mobile radio station can be a cellular telephone, and the form of computer and other such transceivers is used for communicating with one or more base stations of service supplier operation by individual or user.Because the mobile radio station of not all form all is that move easily or portable, though major part is mobile or portable, so mobile radio station also can be called the individual station herein.Therefore, system 1 is expressed as cellular system and comprises mobile radio station 14, mobile radio station 14 with comprise that the configurations of a series of base stations 2,4,6,8 and 10 communicates, these base stations lay respectively among the mesh A-E and all link system controller and switch 12.When mobile radio station 14 was mobile in system's area of coverage, the user can utilize mobile radio station 14 to be undertaken by the radio interface with forward direction and reverse link 20 and 18 between mobile radio station 14 and base station 8 and receives call to the cellular phone service of system 1.Controller and switch 12 are linked through conventional cell phone in the base station, and controller and switch 12 are linked public switched telephone network (PSTN) so that the user can carry out and receipt of call from the land-line public network.Mesh A-E is expressed as roughly the same size and can is " microgrid hole " size, that is, width is about 500 meters.Such mesh can require the maximum transmission power in mobile station level of 200mW.In this embodiment, the forward direction and the reverse link 20,18 of system's 1 utilization or symmetry (equivalent data rates) or asymmetric (different pieces of information speed) provide variable speed rates through data link.

Now referring to Fig. 2 A, signal square frame curve diagram wherein sends transmitter-modulator 100 parts of variable-speed data on the reverse link of cellular system according to the embodiment of the invention.The transmitter-modulator 100 that can use in the reverse link 18 of the mobile radio station 14 of Fig. 1 comprises the defeated people's circuit that is called demultiplexer (DEMUX) 102 for simplicity, and convolution coder/interleaver (CC/INT) 104 in parallel, 106,108 and 110, Walsh modulator (Walsh mod.) 112 in parallel, 114,116 and 118, data pulse string randomizer 120,122,124 and 126, multiplexer (MUX) 128, transmission rate controller 130, long code generator 132, long code expander 138, QPN expander 136 and IPN expander 134.

In the operation, transmitter-modulator 100 receives the defeated personal data on the incoming line 140 and generate the dateout that is used to transmit to RF circuit 146 on output line 144 and 142 from expander 134 and 136.Numerical data on the circuit 140 inputs to DEMUX 102 and is modulated to the 20ms transmission frame that can form serial data frame and can have various possible configurations, such as full rate data frame (192 bit), half rate Frame (96 bit), 1/4th speed data frames (48 bit) and 1/8th speed data frames (24 bit), wherein serial data frame is made of data field, frame rate bit field, crc field and tail bit field.The frame rate bit is represented with respect to the variation in the frame number rate of the next one Frame subsequently of transfer of data of the Frame at frame rate bit place.

In an illustrated embodiment, transmitter-modulator 100 uses four parallel sub-channels or " pipeline (pipe) " SC1-SC4.Each subchannel can transmit data between DEMUX 102 and MUX 128, be used for message transmission rate and change, and give four/one-period (0.3125ms) in each cycle of 16 1.25ms power control group transmission cycles of the 20ms frame that each subchannel distributes each transmission.Depend on the message transmission rate requirement, each subchannel of four subchannels can carry out in cycle or can not carry out transfer of data at the 0.3125ms of the specific 20ms frame of distributing to it.The first subchannel SC1 is formed with the data transfer path of data pulse string randomizer 120 to MUX 128 defeated people A ' through CC/INT104, Walsh modulator 112 by the output A from DEMUX 102; The second subchannel SC2 is formed with the data transfer path of the input B ' of data pulse string randomizer 122 to MUX 128 through CC/INT 106, Walsh modulator 114 by the output B from DEMUX 102; The 3rd subchannel SC3 is by forming with the data transfer path of data pulse string randomizer 124 to MUX 128 input C ' through CC/INT 108, Walsh modulator 116 from DEMUX 102 output C; And the 4th subchannel SC4 is formed with the data transfer path of the defeated people D ' of data pulse string randomizer 126 to MUX 128 through CC/INT 110, Walsh modulator 118 by the output D from DEMUX 102.Though four parallel sub-channels are shown, the replacement that has greater or less than this embodiment of four subchannels is possible.

Fig. 2 B represents suitable but nonrestrictive CC/INT piece, and the function example of the piece 104 of Fig. 2 A for example is so that use with meeting the IS-95 specification data.From demultiplexer (DEMUX) 102 defeated the people's and the Frame that comprises the reverse link information bit have additional its quality of giving and indicate, follow other tail bit thereafter.The Frame bit carried out convolution subsequently before being input to Walsh modulator 112, the verification code element repeats the line interlacing of going forward side by side.

Transmitter-modulator 100 can be designed to as the data rate transport parameter compatibility of the CDMA up link defined of the IS-95 that in file TIA/EIA IS-95-A, proposes.In the configuration that is designed to the transmitter-modulator 100 of IS-95-A compatibility, transmitter-modulator 100 can be used for providing transfer of data with 9.6kbps, the 4.8kbps of half rate, the 2.4kbps of 1/4th speed and the 1.2kbps of 1/8th speed of the IS-95-A of the full rate of using the 20ms frame.Message transmission rate also can be increased to 19.2kbps, 28.8kbps or be increased to 38.4kbps by the duration of reducing Frame.Also can obtain the message transmission rate between 9.6kbps, 19.2kbps, 28.8kbps and the 38.4kbps by utilizing the various increment operation subchannels of the full rate of the Frame of weak point.Transmission rate controller 130 can generate control signal and give DEMUX 102 so that according to pre-defined algorithm chooser channel, so that in case might just form full-rate vocoding.In response, DEMUX 102 sends or directly incoming bit stream is sent to each CC/INT piece 104,106,108 and 110.

In the embodiment of Fig. 2 A and 2B, each Frame physical length in time depends on the quantity of the subchannel (SC) that uses with 9.6kbps.For example, utilize the defeated people's serial data of 9.6kbps of wherein using a subchannel with 9.6kbps, every frame length is 20ms and is full rate.And utilize the 14.6kbps transfer of data, one of them subchannel is to use with 9.6kbps, and a subchannel is to use with 4.8kbps, and then each Frame is that 10ms is long, and the Frame that has a frame and be full rate and next consecutive frame and be half rate is right.For the 19.2kbps transfer of data of using two subchannels with 9.6kbps, each Frame is that 10ms is long, and every frame is a full rate.Each the continuous data frame demultiplex on DEMUX 102 that receives in input 140 is a subchannel, carries out demultiplex according to defeated people's serial data rate.It is transparent that serial data frame is handled for the next stage of beginning on DEMUX 102, and will have with defeated people 140 on assemble again in the receiver of the same information content and data frame format.

Transmission rate controller 130 before each 20ms cycle begins from central control processor rate of received data information, receive the data that will in the 20ms transmission frame, send in cycle at each 20ms, and generate appropriate control signals to DEMUX 102 and MUX 128.Depend on the data rate that in input 140, receives, each Frame of DEMUX 102 multiplexed receptions, so that with 9.6kbps speed or reduce, promptly receive data at least one input of CC/INT104, CC/INT106, CC/INT 108 and CC/INT 110 with half rate (4.8kbps), 1/4th speed (2.4kbps) or 1/8th speed (1.2kbps).If in input 140, receive data with 9.6kbps, DEMUX 102 only exchanges data to the first subchannel SC1.If on defeated people 140, receive data, then multiplexed these data between first and second subchannel SC1 and SC2 with 19.2kbps.If data receive with 28.8kbps, multiplexed these data between first, second and the 3rd subchannel SC1-SC3 then.And if receive data, the then data of multiplexed reception between whole four subchannel SC1-SC4 with 38.4kbps.Subsequently, MUX 128 will input to expander 138 on the cycle and with these data from the suitable 0.3125ms of the data multiplex of each subchannel each the power control group in each 20ms frame.From the data of expander 138 output by expander 134 and 136 and send RF circuit 146 to, so that on the reverse link 18 of cellular system 1, transmit as the data of variable bit rate at outlet line 144 and 142.

Now referring to Fig. 3 A and 3B, signal-time graph is wherein represented the sequential chart according to the embodiment of the invention ul transmissions shown in Fig. 2 A.Fig. 3 A represents the transmission time sequence in three 1.25ms power control group cycles in every frame with four different 20ms transmission frame 200-206 of transmitter-modulator 100 configuration of IS-95-A compatibility.Transmission frame 200 expression 9.6kbps transfer of data, frame 202 expression 19.2kbps transfer of data, frame 204 expression 28.8kbps transfer of data and frame 206 expression 38.4kbps transfer of data.First, second and last power control group cycle of each transmission frame are shown.Fig. 3 B represents to have the internal signal sequential in the transmitter-modulator 100 of 20ms transmission frame of a series of 28.8kbps transfer of data.Curve chart 208 is illustrated in the sequential of the last signal of output A-D of DEMUX 102, the signal sequence on defeated people A '-D ' of curve chart 210 expression MUX 128, and the output of curve chart 212 expression MUX 128.

In operation, when data send with 9.6kbps speed or littler speed, DEMUX 102 with the data transaction that receives to the first subchannel SC1, i.e. the first subchannel SC1 that forms by the transmission path of failing people A ' through CC/INT 104, Walshmod.112 and data pulse string randomizer 120 to MUX 128 from output A.The data that received can be one or more full rate data frame, and every frame is the 20ms duration.The first subchannel SC1 operates data in the described mode of Fig. 2 A embodiment that is equivalent to first subchannel in 9.6kbps or slower transmission rate situation subsequently.Yet, dateout in first 0.3125ms in each 1.25ms power control group cycle of Walsh modulator 112 in the 20ms transmission frame, rather than occupy the whole 1.25ms cycle.Result in the output of Walsh modulator 112 is the walsh code flow filament (1,000 Walsh code elements of per second) of 4.8ksps speed.For data rate, there are not data to reduce chip rate pro rata by making for eight/one or more four/one-period less than 9.6kbps.For 4.8kbps, 2.4kbps or 1.2kbps data rate, data pulse string randomizer 120 can be used for the position in employed power control group cycle of randomization and the frame thereof.Then, every frame expansion in long code expander 138, IPN expander 134 and QPN expander 136.Shown in the frame 200 of Fig. 3 A, on the message transmission rate of 9.6kbps, a 0.3125ms cycle in each 1.25ms power control group cycle is used to fill from the data of the first subchannel SC1.For data rate, fill the 0.3125ms cycle that each cycle was arranged less than the control group cycle of the right quantity of each total number of cycles in 16 power control group cycles with data less than 9.6kbps.Data pulse string randomizer 120 also will be in less than the situation of the data rate of 9.6kbps between the control group randomization data position.During 1.25ms cycle time, do not send code element rather than do not send code element in the 0.3125ms cycle that is used for subchannel SC1.On the actual modulated symbol pulses string transmission rate stuck-at-9.2ksps speed of this embodiment, this obtains the Walsh sheet burst transmission rates (1,000,000 of per seconds) of actual 1.2288mcps.Because long code expander 138 is expanded each Walsh sheet with 1.2288mcps speed, so each Walsh sheet is expanded by a PN sheet.The Walsh code element of expansion subsequently by the IPN sequence in the IPN expander 134 and the QPN sequence extension in the QPI expander 136 so that respectively in I and Q channel, and send to the RF part 146 of transmitter.For the bit constant energy that keeps each to send, send this data with the speed of comparing four times with the individual channel situation of Fig. 2 A embodiment.

When with the 19.2kbps rate sending data, use two subchannels (SC1 and SC2).The frame 202 expression 19.2kbps transfer of data situations of Fig. 3 A.Subchannel SC1 and subchannel SC2 fill first and second 0.3125ms cycle in each the 1.25ms power control group cycle in each 20ms transmission frame with 19.2kbps speed.In the transfer of data situation of 19.2kbps, the 19.2kbps data that receive on the defeated people 140 of DEMUX 102 are multiplexed as first and second subchannel SC1 and the SC2 of transmitter-modulator 100 with each subchannel 9.6kbps speed.These data can be each two full rate data frame forms that are the 10ms duration.These data are handled in the mode of the data of 9.6kbps transmission to be equal to wherein first subchannel SC1 processing in each subchannel SC1, SC2 subsequently, and are as above described in the face of frame 200.Multiplexed by MUX 128 subsequently and each the 1.25ms power control group that is compressed to each 20ms frame of data processed is on the cycle in first and second subchannel path SC1 of transmitter-modulator 100 and SC2.Handle and be used for the 9.6kbps data transmission manner and handle and send to RF circuit 146 to be equal to wherein code element subsequently from the code element of MUX 128 output.

When data send with 28.8kbps speed, the 28.8kbps data that receive in the input 140 of DEMUX 102 are multiplexed as first, second and the 3rd subchannel SC1-SC3 of transmitter-modulator 100 with each subchannel 9.6kbps speed, and the data that received can be the forms that every frame is at least three total rate Frames of 6.66ms duration.The output A-D of Figure 20 8 expression DEMUX 102 of Fig. 3 B.When T=0, each the 192 bit group on defeated people 140 in 576 bits that 20ms received in the cycle are multiplexed to one of output A, the B of DEMUX 102 and C.These data are used for the 9.6kbps transmission manner and handle to be similar to wherein the first subchannel SC1 deal with data in each subchannel subsequently, as described to frame 200.When T=40ms, these data are failed channel input A ', B ' and the C ' of people to MUX 128 from subchannel S1, S2 and S3 respectively.The incoming timing of curve chart 210 expression MUX 128.Receive in the cycle at first, second and the 3rd 0.3125ms in each 1.25ms cycle of each 20ms transmission frame respectively from the data of each subchannel S1, S2 and S3.The 4th 0.3125ms cycle in each 1.25ms cycle still is empty in the situation of 28.8kbps speed.These data are imported on A ', B ' and the C ' at each and are received with 4.8ksps Walsh code element speed, and these data are multiplexed by MUX 128 subsequently.The output of MUX 128 in curve chart 212 this kind of expression situations.Each cycle in first three cycle in four of each 1.25ms cycle 0.3125ms cycles in the data infilled frame.Handle and be used for the 9.6kbps data transmission manner and handle to be equal to wherein code element subsequently from the code element of MUX 128 output, and send to the RF part 146 of transmitter.The 20ms transmission frame of the frame 204 expression 28.8kbps message transmission rate situations of Fig. 3 A.With 28.8kbps speed, from the data of subchannel SC1, from the data of subchannel SC2 with fill first three cycle in four 0.3125ms cycles in each 1.25ms power control group cycle of each 20ms transmission frame from the data of subchannel SC3.

For the 38.4kbps message transmission rate, use all four 0.3125ms cycles in each the 1.25ms power control group cycle in the 20ms transmission frame.The transmission frame 206 expression 38.4mbps data transmission frames of Fig. 3 A, the class of operation of the transmitter-modulator 100 in this situation is similar to 28.8kbps transfer of data situation the operation described, except the 4th subchannel is activated in transmitter-modulator 100.Therefore, the 38.4kbps data that receive in input 140 are multiplexed as with 9.6kbps in each subchannel of four subchannel SC1-SC4 of transmitter-modulator 100.These data are handled in subchannel subsequently, and fail defeated people A ', B ', C ' and the D ' of people to MUX 128 in the cycle at each the 1.25ms time cycle first, second, third and the 4th 0.3125ms of 20ms frame respectively.These data are subsequently by MUX 128 multiplexed and outputs, so that data are filled each cycle in four 0.3125ms cycles in each the 1.25ms cycle in the 20ms transmission frame with 4.8ksps speed for each input.The 20ms transmission frame of the frame 206 expression 38.4kbps message transmission rate situations of Fig. 3 A.With 38.4kbps speed, from the data of subchannel SC1, from the data of subchannel SC2, from the data of subchannel SC3 with fill the first, second, third and the 4th 0.3125ms cycle in each 1.25ms power control group cycle respectively from the data of subchannel SC4.

Handle and be used for the 9.6kbps data transmission manner and handle to be equal to wherein code element subsequently from the code element of MUX 128 output, and send to RF circuit 146 so that transmission.

The embodiment of Fig. 2 A also can be used for by with support less than the speed of 9.6kbps operation subchannel 9.6 and 38.4kbps between the transfer of data of ascending rate.For example, data can utilize DEMUX 102 to send with 14.4kbps speed in case with the 14.4kbps data that receive respectively with among 9.6kbps (full rate data frame) and multiplexed first and second subchannel SC1 of 4.8kbps (half rate Frame) and the SC2, and use second subchannel with half rate subsequently.In this case, only in 8 cycles in 16 power control group cycles of each 20ms frame, fill the 2nd 0.3125ms cycle of each 1.25ms power control group.

Now referring to Fig. 2 C, signal square frame curve diagram wherein receives the receiver/demodulator part of data on multiplexed subchannel according to one embodiment of the invention.Receiver demodulator 148 can provide to be provided at the reception of the variable-speed data that is sent on the reverse link 18 in base station 2,4,6,8 and/or 10.Receiver demodulator 148 comprises receiver circuit 150, I PN despreader 152, QPN despreader 154, long code maker 160, I long code despreader 156, Q long code despreader 158, demultiplexer (De-MUX) 162, Walsh demodulator (Walsh Demod.) 164,166,168 and 170, deinterleaver/decoder (Deint/Dec) 172,174,176 and 178, multiplexer (MUX) 182 and receiving velocity controller 180.

When the signal that from transmitter/modulator, sends such as transmitter-modulator 100 when receiver demodulator 148 receives, the despreading in I PN despreader 152 of I channel signal, and the despreading in Q PN despreader 154 of Q channel signal.Each signal is despreading in long code despreader 156 or 158 subsequently.De-MUX 162 is with the opposite mode multipath reception data of the mode of MUX 128 multiplexed data in transmitter-modulator 100 then.Each output A of De-MUX 162 ", B ", C ", D " comprise I channel signal (solid line) and Q channel signal (dotted line).In transmitter-modulator 100, carry out multiplexed identical speed with MUX 128 and in De-MUX 162, carry out demultiplex.Before receiving data-signal, rate of received data information on receiving velocity controller 180, and receiving velocity controller 180 generates suitable control information, so that De-MUX 162, walsh-decoded device 164,166,168 and 170, deinterleaver/decoder 172,174,176 and 178 and the data that received of MUX 182 demodulation correctly.For example, Data Receiving speed for 38.4kbps, identical in the curve chart 210 of input that each channel (I and Q) is gone up De-MUX 162 and Fig. 3 B, the output A of while De-MUX 162 ", B ", C ", D " identical with output A, the B of the MUX 128 shown in the curve chart 208, waveform on C, the D respectively.Each Walsh demodulator/De-int/Dec is to deal with data, and handled data will be input to the defeated people A of MUX182 ", B ", C ", D ", once import 192 bits.Defeated people is to the input A of MUX 182 " ', B " ', C " output A, B, C, the D waveform with the DEMUX 102 shown in the curve chart 206 is identical respectively for the data waveform of ', D " '.The data flow of serial output will be by MUX 182 output in output 184 then.If correctly receive, then defeated people gives and sends out an input serial data of bending forward machine modulator 100 and flow identical in the data flow of output in the output 184 and input 140 in Fig. 2 A.

Now referring to Fig. 4 A and 4B, schematic block diagram wherein generally represents to provide on the forward link according to one embodiment of the invention the transmitter-modulator 402 and receiver demodulator 404 parts of variable-speed data respectively.Transmitter-modulator 402 can be equipped in any base station 2,4,6,8 and 10 of Fig. 1, and receiver demodulator 402 can be equipped in the mobile radio station 14 of Fig. 1, so that provide variable-speed data on forward link 20.The high-speed data signal DATAIN that sends on the radio path in data extractor 61, be divided into institute's requested number than slow data signal DATA1, DATA2 ... DATAN.Can change transfer of data by changing employed concurrent service number of channel N.In cdma system, parallel C DMA Traffic Channel cho, the ch1 of selected quantity N ... the ch2 branch is used in transmission.That is, for each than slow rate signal DATA1, DATA2 ... DATAN distributes a particular extension sign indicating number, so that making a distinction mutually between transmission period simultaneously by radio interface.The extended code of system is preferably selected in such a way, makes that employed sign indicating number is mutually orthogonal in each system's mesh, and promptly they are uncorrelated mutually.The orthogonal-binary sequence that one class is suitable is called walsh function.In the embodiment shown in Fig. 4 A, by each walsh codes device 62 ... utilize the walsh function 1 of the length of revising 255 among the 62N ... each slow data flow DATA1 of N coding (taking advantage of) ... DATA N carries out Traffic Channel and separates, so as on bandwidth extended data stream.Revise walsh function, so that delete the last bit of all functions.Spread data streams is fed to antenna 64 by radio frequency (RF) part 63, so that transmit by radio interface.

Shown in Fig. 4 B, the RF signal of the transmission that receives on reception antenna 65 is by 66 transmission of RF part and at parallel C DMA Traffic Channel ch0 ', ch1 ' ... chn ' or branch into correlator 67 ₁67 _NCorrelator in separate.Correlator 67 ₁67 _NIt is the walsh-decoded device, each correlator utilize each cdma service channel ch0 ', ch1 ' ... the walsh function 1 of chn ' ..., the spread-spectrum signal that connect of N decoding (taking advantage of) so that on bandwidth despread signal and recover each and flow DATA1 than slow data ... the original bandwidth of DATAN.Recovered than slow data stream DATA1 ' ... DATAN ' is combined as high-speed data-flow DATAOUT subsequently in combiner 68.

Usually, have various codings and signal processing operations such as chnnel coding (convolutional encoding), code element repeat, staggered etc. relevant with transfer of data, as shown in Fig. 4 B.These additional operations are not main for the present invention, but can use in force.In the embodiment of Fig. 4 A and 4B, suppose: if any, before data are separated and after data make up, high-speed data-flow DATAIN and DATAOUT are carried out these codings and functional interleaving in splitter 61 in combiner 68.

As mentioned, can utilize the message transmission rate of N concurrent service channel (DATA1-DATAN) the change forward link of variable number.This changes function and can be controlled by transmission rate controller 69 in the transmitter-modulator 402 and the receiving velocity controller 70 in the receiver demodulator 404.Therefore, use the variable bit rate symmetry/asymmetric data link of forward link 20 and reverse link 18 between the base station of the base station 8 of mobile radio station 14 and for example Fig. 1, to set up, be used for that exchange has the type of service message that information writes down according to the present invention.

Now referring to Fig. 5 A and 5B, wherein utilize asymmetric speed bit of the present invention to represent information field in such type of service message.Fig. 5 A represents high-speed data (HSD) service configuration information record, comprises the field of type of service data, asymmetric speed bit, forward link rate data, reverse link rate data and additional control data.Fig. 5 B represents the information record as shown in Fig. 5 A, but does not have the reverse link rate data, the situation when showing that as asymmetric speed bit field list forward direction is identical with the data rate of reverse link.These information record can or send to base station (BS) such as any base station 2,4,6,8 and 10 from the mobile radio station (MS) such as the station 14 of Fig. 1, or sends to mobile radio station from a base station.Such information record can be included in status response message, business request information, service response message or the professional connection message, and also can be included in the current business request message.Road as known, status response message sends business request information and decides through consultation to begin professional wind for the request of response current business configuration sends.Service response message can be used with business request information during business is decided through consultation, so that decide through consultation business configuration.Service response message can be used to decide through consultation forward direction and reverse link data transmission speed with business request information.Professional connection message sends to mobile radio station from the base station, so that specify employed actual disposition after deciding through consultation.Service request, response and connection message can comprise zero or 1 information record, and that record can be high-speed data (HSD) the service configuration information record such as Fig. 5 A and 5B shown type.Status response message comprises those information records by the transmit status request message requests.One of those information records can be HSD business configuration records, shown in Fig. 5 A and 5B, professional connection message can be included in professional connection message and send to mobile radio station employed HSD service configuration information record when disposing to specify the practical business that will use deciding through consultation after from the base station.

To describe now that required time and signal length improve one embodiment of the present of invention of setting up the employed signaling message form of speed in such system between multiplexer channel in setting up based on the connection of code division multiple access (CDMA) telecommunication system of IS-95 standard by shortening in detail, such as described in conjunction with Fig. 1 to 5B.

Information recorded content according to the present invention is illustrated in the table 1, as the preferred form of high-speed data (HSD) service configuration information record.Table 1 expression connects to set up in the framework message field and divide and is used in the binary bits number that utilizes code to discern the information that is comprised in each field, it be included in service request and the service response message and during the high-speed data service configuration is decided through consultation the example of employed information, it is also contained in the status response message to indicate the current configuration at individual station.The information record of this example is based on the service configuration information record that only has the additional relevant field of some HSD, and explains how individual station should use this record in each message

Table 1-IISD service configuration information record

Type-specific fields length (bit)

ASYMMETRIC_RATES 1

FOR_RATE_SET 4

REV_RATE_SET 4

FOR_MUX_OPTION 16

REV_MUX_OPTION 0 or 16

SERVICE_TYPE 3

FOR_SUB_RATE_1 0 or 8

FOR_SUB_RATE_2 0 or 8

FOR_SUB_RATE_3 0 or 8

FOR_SUB_RATE_4 0 or 8

FOR_SUB_RATE_1 0 or 8

FOR_SUB_RATE_2 0 or 8

FOR_SUB_RATE_3 0 or 8

FOR_SUB_RATE_4 0 or 8

FOR_PREF_MAX_RATE 0 or 8

REV_PREF_MAX_RATE 0 or 8

FOR_ACCEPT_MAX_RATE 8

REV_ACCEPT_MAX_RATE 0 or 8

FOR_CURRENT_RATE 0 or 8

REV_CURRENT_RATE 0 or 8

MOV_STATIONARY 1

NUM_CON_REC 8

The NUM_CON_REC occurrence rate of following record-

RECORD_LEN 8

CON_REF 8

SERVICE_OPTION 16

FOR_TRAFFIC 4

REV_TRAFFIC 4

SERVICE_QUALITY 3

RESERVED 0-7 (as required)

These fields are included in the status response message returning current business configuration, and are included in business request information and the service response message to propose business configuration.

The sign indicating number of setting up field that is used for table 1 is as follows:

The asymmetric speed of ASYMMETRIC_RATES_

Use in the situation of identical rate configuration at forward direction and reverse link, promptly identical multiplexed selection quantity and speed are provided with quantity and same rate mutually, needn't transmit the rate information that duplicates.Yet according to the present invention, the ASYMMETRIC_RATE bit in the signaling message is set to a binary value, and for example " 0 " is used for both direction to represent identical rate configuration.Then, a kind of rate configuration of in signaling message, only encoding.Therefore, if the ASYMMETRIC_RATE field is set to " 0 ", then the data of following field will be not included in the message:

REV_RATE_SET

REV_MUX_OPTION

REV_ACCEPT_MAX_RATE

REV_PREF_MAX_RATE

REV_CURRENT_RATE

REV_SUB_RATE_1

REV_SUB-RATE_2

REV_SUB_RATE_3

REV-SUB-RATE_4

Message thereby will shorten to following form:

ASYMMETRIC_RATES 1

FOR_RATE_SET 4

FOR_MUX_OPTION 16

SERVICE_TYPE 3

FOR_SUB_RATE_1 0 or 8

FOR_SUB_RATE_2 0 or 8

FOR_SUB_RATE_3 0 or 8

FOR_SUB_RATE_4 0 or 8

FOR_PREF_MAX_RATE 0 or 8

FOR_ACCEPT_MAX_RATE 8

FOR_CURRENT_RATE 0 or 8

MOV_STATIONARY 1

NUM_CON_REC 8

-NUM_CON_REC

The NUM_CON_REC occurrence rate of following record

RECORE_LEN 8

CON_REF 8

SERVICE_OPTION 16

FOR_TRAFFIC 4

REV_TRAFFIC 4

SERVICE_QUALITY 3

RESERVED 0-7 (as required)

Use in the situation of different rates configuration at forward direction and reverse link, the ASYMMETRIC_RATE bit in the signaling message is set to another binary value, i.e. " 1 " is to be illustrated in two different rate configuration of coding in the signaling message.Thereby two kinds of configuration packet are contained in the message, so that to use all fields and message-length be conventional, and are as shown in table 1.

Therefore, for status response message, if forward traffic channel is identical with the reverse traffic channel transmission rate in the current business configuration, the individual station can be provided with the ASYMMETRIC_RATE field and be " 0 ", if forward traffic channel and reverse traffic channel transmission rate are inequality in the current business configuration, then individual station will be provided with this field and be " 1 ".

For business request information and service response message, if forward traffic channel is identical with the reverse traffic channel transmission rate in the business configuration of suggestion, then individual station should this field be set to " 0 ", if forward traffic channel is not identical with the reverse traffic channel transmission rate in the business configuration of suggestion, then individual station should be provided with this field and be " 1 ".

Other information field effects of HSD are as follows.

FOR_RATE_SET: forward traffic channel speed is provided with.

For status response message, it is that the speed of current business configuration is provided with quantity (for example, 3 be provided with 3 corresponding to speed) that the individual station is provided with this field.

For business request information and service response message, the speed that this field of individual station is set to the business configuration of suggestion is provided with quantity (for example, 1 corresponding to multiplexed selection 1).

FOR_MUX_OPTION: the multiplexed selection of a forward traffic channel.

For status response message, individual station will be provided with the multiplexed selection number of forward traffic channel that this field is a current business configuration (for example, 1 corresponding to multiplexed selection 1).

For business request information and service response message, individual station should this field be set to the multiplexed selection number of forward traffic channel of the business configuration of suggestion.

SERVICE_TYPE a: type of service.

For status response message, mobile radio station or this field of individual station are set to the SERVICE_TYPE sign indicating number, shown in following table 2, corresponding to the type of service of using in the current business configuration.

For business request information and service response message, this field of individual station is set to corresponding to the SERVICE_TYPE shown in the table 2 of the type of service of the business configuration of suggestion.

Table 2-SERVICE_TYPE sign indicating number

The SERVICE_TYPE binary system	Explanation
		000	Fixed velocity service
001	Multiple-rate business
		010	The dynamic rate business
Reserve every other SERVICE_TYPE sign indicating number

Fixed velocity service-data rate remains unchanged for call duration.

Multiple-rate business-data rate can be by adjusting with deciding through consultation during calling out of network.

Dynamic rate business-data rate allows dynamically to change during calling out.

The type of service of form of message shown in the table 1 and setting has some variations slightly.For example, sub-speed (SUB_RATE) field is only used between the dynamic rate service period, and present rate (CURRENT_RATE) field is only used during multiple-rate business.The PREF_MAX_RATE field is not used with fixed velocity service.

The acceptable maximum rate of FOR_ACCEPT_MAX_RATE-forward traffic channel.

This field is by accepting the SUB_RATE sign indicating number of maximum rate and form corresponding to being used to be connected with forward traffic channel.

For status response message, individual station is provided with this field and is SUB_RATE sign indicating number to the acceptable maximum rate of forward traffic channel of current business configuration.

For business request information and service response message, individual station should this field be set to the SUB_RATE sign indicating number corresponding to the acceptable maximum rate of forward traffic channel of the business configuration of suggestion.

The preferred maximum rate of FOR_PREF_MAX_RATE-forward traffic channel.

If SERVICE-TYPE=" 001 " (many speed) or " 010 " (dynamic rate), then this field is made up of the SUB_RATE corresponding to the preferred maximum rate of forward traffic channel that connects.If SERVICE_TYPE=" 000 " (fixed rate), this field should not be included in the message.

For status response message, individual station should be provided with this field and be the SUB_RATE sign indicating number corresponding to the preferred maximum rate of forward traffic channel of current business configuration.

For business request information and service response message, individual station should this field be set to the SUB_RATE sign indicating number corresponding to the preferred maximum rate of forward traffic channel of the business configuration of suggestion.

The current transmission rate of FOR_CURRENT_RATE-forward traffic channel.

If SERVICE_TYPE=" 001 " (many speed), then this field is by forming corresponding to the SUB_RATE sign indicating number of the current transmission rate of forward traffic channel that connects.If SERVICE_TYPE=" 000 " (fixed rate) or " 010 " (dynamic rate), then this field should not be included in the message.

For status response message, individual station should be provided with this field and be the SUB_RATE sign indicating number corresponding to the current transmission rate of forward traffic channel of current business configuration.

For business request information and service response message, individual station should be provided with this field and be the SUB_RATE sign indicating number corresponding to the current transmission rate of forward traffic channel of the business configuration of current suggestion.

FOR_SUB_RATE_N-forward traffic channel divides speed.

If SERVICE-TYPE=" 010 ", then these fields are made up of (being that each HSD speed is provided with definition) SUB_RATE sign indicating number.If SERVICE_TYPE=" 000 " or " 001 ", then these fields should be not included in the message.

For status response message, individual station should be provided with these fields and be the SUB_RATE sign indicating number corresponding to the forward traffic channel branch speed of using in the current business configuration.

For business request information and service response message, individual station should these fields be set to the SUB_RATE sign indicating number corresponding to the forward traffic channel branch speed of the business configuration of being advised.

REV_RATE_SET-reverse traffic channel speed is provided with.

The multiplexed selection of REV_MUX_OPTION-reverse traffic channel.

The acceptable maximum rate of REV_ACCEPT_MAX_RATE-reverse traffic channel.

The preferred maximum rate of REV_PREF_MAX_RATE-reverse traffic channel.

The current transmission rate of REV_CURRENT_RATE-reverse traffic channel.

REV_SUB_RATE_N-reverse traffic channel divides speed.

All above-mentioned REV fields relate to reverse traffic channel and comprise information corresponding to the relevant FOR field information of forward traffic channel.

MOV_STATIONARY-move/fixed signal.

If the individual fixes at the station, then this field of individual station is set to a binary value, for example " 0 ", if perhaps move at the individual station, then this field is set to another binary value, i.e. " 1 ".

NUM_CON_REC-service selection linkage record number.

This field of individual station is set to be included in the service selection linkage record number in the message.

For status response message, individual station should be included in the occurrence rate of one 7 field record after this field that each service selection of current business configuration connects.

For business request information and service response message, individual station should comprise the occurrence rate of 7 field record subsequently that each service selection of the business configuration of suggestion connects.

RECORE_LEN-service selection linkage record length

The individual station should this field be set to be included in eight bit hytes in this service selection linkage record.

CON_REF-service selection connects benchmark.

For status response message, it is that service selection connects benchmark that the individual station is provided with this field.

For business request information and service response message, be the part of current business configuration if service selection connects, it is that service selection connects benchmark that then individual station should be provided with this field; Otherwise individual station should be provided with this field and be " 00000000 ".

SERVICE_OPTION-service selection.

For status response message, individual station should this field be set to connect with service selection the service selection of use.

For business request information and service response message, individual station should this field be set to connect with service selection the service selection of use.

FOR_TRAFFIC-forward traffic channel type of service.

For status response message, individual station should this field be set to the FOR_TRAFFIC sign indicating number, and is as shown in table 3 below, corresponding to connecting the forward traffic channel type of service of use with service selection.

For business request information and service response message, individual station should this field be set to corresponding to connecting the FOR_TRAFFIC sign indicating number of table 3 of the forward traffic channel type of service of use with service selection.

Table 3-FOR_TRAFFIC sign indicating number

FOR_TRAFFIC (binary system)	Explanation
		0000	Service selection is not used the forward traffic channel business
0001	Service selection connects uses main task on the forward traffic channel
		0010	Service selection connects uses secondary service on the forward traffic channel
Reserve every other FOR_TRAFFIC sign indicating number

REV_TRAFFIC-reverse traffic channel type of service

For status response message, the individual station is provided with this field and is the REV_TRAFFIC sign indicating number, and is as shown in table 4 below, corresponding to connecting the reverse traffic channel type of use with service selection.

For business request information and service response message, individual station is provided with this field and is corresponding to connecting the REV_TRAFFIC sign indicating number of table 4 of the reverse traffic channel type of service of use with service selection.

Table 4-REV_TRAFFIC

REV_TRAFFIC (binary system)	Explanation
		0000	Service selection connects the reverse traffic channel business of not using
0001	Service selection connects the main task of using on the reverse traffic channel
		0010	Service selection connects the secondary service that uses on the reverse traffic channel.
Reserve every other REV_TRAFFIC sign indicating number

SERVICE_QUALITY-quality of service.

For status response message, individual station should be provided with this field and be the SERVICE_QUALITY sign indicating number, and is as shown in table 5 below, corresponding to the quality of service of current configuration.

For business request information and response message, individual station should this field be set to the SERVICE_QUALITY sign indicating number of table 5 of the quality of service of corresponding business configuration of being advised.

Table 5-SERVICE_QUALITY sign indicating number

Quality of service (binary system)	Expression
		000	Uncoded business
001	Bit error rate is 10 -4Business
		010	Bit error rate is 10 -6Business
Reserve every other SERVICE_QUALITY sign indicating number

The bit of RESERVED-reservation

The individual station should this field be set to " 0000 ".

Also have, hand-off direction (EHD) message that expands can comprise such as the ASYMMETRIC-RATE field in the added field part of being mentioned in the 46th page of " signaling among the IS-95 changes to support HSD " version 1.0, and suitable record can be included in " added field " of hand-off direction message of following expansion:

Table 6-EHD message added field

Field length (bit)

RATES_INCLUDED 1

ASYMMETRIC_RATES 0 or 1

FOR_CURRENT_RATE 0 or 8

REV_CURRENT_RATE 0 or 8

NUMBER_OF_PILOTS 4

" pilot tone number " occurrence rate of following field:

NUM_CODE_CHAN 4

Reserved for 0 or 4 (as required)

(HSD) service configuration information record that is included in the professional connection message can comprise identical field as described in Table 1, the actual value that the data value specific data speed in professional connection message will be used after deciding through consultation and finishing.

Base station (BS) can send present rate and revise message to mobile radio station (MS) during high speed data call, revise present rate with instruct MS.This message can have following form:

Table 7-present rate is revised the information record

Field	Length (bit)
		MSG_TYPE	8
ACK_SEQ	3
		MSG_SEQ	3
ACK_REQ	1
		ENCRYPTION	2
USE_TIME	1
		ACTION_TIME	6
MODIFY_SEQ	2
		MODIFICATION_TYPE	1
ASTMMETRIC_RATES	1
		FOR_CURRENT_RATE	8
REV_CURRENT_RATE	0 or 8
		ADD_LENGTH	3
Added field	8 X ADD_LENGTH

Field

Length (bit)

Zero or the more occurrence rates that write down below:

PILOT_PN	9
		PWR_COMB_IND	1
NUM_CODE_CHAN	4

The NUM_CODE_CHAN occurrence rate of following field:

CODE_CHANi	8
		Reserve	0-7 (as required)

The information that is included in the field is as follows:

MSG_TYPE-type of message

ACK_SEQ-affirmation sequence number

MSG_SEQ-message SN

The sign that ACK_REQ-affirmation requires

ENCRYPTION-message encryption sign

USE_TIME-usage operation time tag

This field list is shown in whether specify ACTION_TIME in this message.If specify ACTION_TIME in this message, then this field of base station is set to " 1 ", otherwise this field of base station is set to " 0 ".

ACTION_TIME-operate time.

If the USE_TIME field is made as " 1 ", then this field of base station is set to system time, is unit (mould 64) with 80ms, and handover will work this moment.If the USE_TIME field is made as " 0 ", the base station will be provided with this field and be " 000000 ".

MODIFY_SEQ-modification type.

If MODIFICATION is TYPE=0, if then increase present rate and comprise a yard channel, then which yard channel is added in the current configuration.

If MODIFICATION is TYPE=1, if increase progressively present rate and comprise a yard channel, then those yards channel is removed from current configuration.

ASYMMETRIC_RATE-asymmetric speed.

If this field is set to " 0 ", in this message, should not comprise the REV_CURRENT_RATE field.If forward traffic channel is identical with the current transmission rate of reverse traffic channel, then the base station should be made as this field " 0 ".If the current transmission rate of forward traffic channel and reverse traffic channel is inequality, then the base station is made as " 1 " with this field.

The present rate that FOR_CURRENT_RATE-forward traffic channel is new.

If FOR_CURRENT_RATE does not change, it is made as 0.

The present rate that REV_CURRENT_RATE-reverse traffic channel is new.

If REV_CURRENT_RATE does not change, it is made as 0.

Eight bit hyte quantity in ADD_LENGTH-added field.

If added field-ADD_LENGTH is not set to " 0 ", then the base station should comprise an occurrence rate of each member's of effective group that the individual station is new following four field record.

PILOT_PN-pilot PN sequence biased exponent.

The base station should be provided with this field for this reason, and pilot tone is the pilot PN sequence biasing of unit with the 64PN sheet.

The composite marker of PWR_COME_IND-power control code.

If the relevant forward traffic channel of pilot tone will carry the closed power control subchannel bit that last pilot tone is identical in the message therewith therewith, this field of this base station is set to " 1 ".Otherwise this field of base station is set to " 0 ".Occur the first time for this record in the message, and this field of base station is set to " 0 ".

The sign indicating number number of channel of NUM_CODE_CHAN-increase or remove.

The base station should this field be set to the sign indicating number number of channel that individual station will increase or remove on the relevant forward traffic channel of pilot tone therewith.

CODE_CHAN-sign indicating number channel indexes.

The base station should this field be set to comprise the sign indicating number channel indexes in 1 to 63 interior scope that individual station will increase or remove on the relevant forward traffic channel of pilot tone therewith.

RESERVDE-reserved bit.

The base station will increase reserved bit as required, so that whole message-length equals eight bit hytes of integer.These bits of base station are set to " 0 ".

When finishing modification, the individual station sends the present rate modification and finishes message.This present rate is revised message and also can be sent with the present rate modify request messages of response from MS by BS.This present rate modify request messages also can comprise the HSD information field.

For the mobile radio station the previous case that HSD calls out that starts, can comprise following exchange in order to obtain to have the example that HSD immediately that business decides through consultation is connected message between mobile radio station (MS) and base station (BS):

If BS accepts a proposal or rate request configuration, then:

If BS can not provide institute's rate request configuration, then BS can advise a lower speed (〉=acceptable maximum rate), for example:

If the speed that MS acceptance is advised, then:

The professional connection finishes after the message transmission in message on any, and suggestion is connected by the high speed data call that MS begins.

The example that the HSD that stops for mobile radio station calls out, the professional HSD immediately that decides through consultation of the message of sequence foundation connects below utilizing:

If MS accepts institute's rate request configuration, then:

Subsequently, setting up the high speed data call that is begun by BS connects.

Message below MS can utilize during high speed data call begins deciding through consultation again of speed:

If BS accepts this request, then:

If it is impossible that speed changes, message below then sending:

If the data rate of newly being agreed from present rate is revised message requires the variation of the Walsh channel that distributes, then present rate is revised and present rate is revised and finished message and exchange additional allocation or the release of being convenient to walsh code below can utilizing:

In each above-mentioned example, in message, comprise HSD service configuration information record if necessary, then can when being symmetry, the reverse and forward link rate of being advised or receive utilize the ASYMMETRIC_RATE bit field to shorten this message.

Therefore as can be seen: equipment and method that the high data rate of improvement business is provided in cellular system are disclosed, wherein such system connect set up in the shortening of required time and signal length reduce to be connected by elimination reverse link rate configuration codes when forward direction uses identical rate configuration with reverse link and set up that desired independent field quantity obtains in the employed signal message.Though the present invention specifically has been described according to IS-95 CDMA embodiment, should understand: it also can be applied to use between the R-T unit two independently any telecommunication systems of one-way transmission channel.

Claims (20)

1, a kind of system that is used to shorten signal message time and signal length, have and a plurality of the connection with the cdma cellular network high speed data rate services of reverse link at the forward direction with code rate configuration set up employed informational message field, described system comprises:

Be used for determining whether forward direction and reverse link use identical rate configuration and be defined as producing when identical a device of indicating in described rate configuration; With

For responding described indication, be used for revising the device of signal message by eliminating reverse link rate configuration codes minimizing independent information message field quantity wherein.

2, according to the system of claim 1, it is characterized in that, described a plurality of informational message field comprises the ASYMMETRIC_RATE bit field that contains binary bits, and described modifier comprises that the binary bits of the ASYMMETRIC_RATE that is used for signal message is set to represent that forward direction and reverse link are to use the device of a binary value of the selection of identical rate configuration.

According to the system of claim 1, it is characterized in that 3, described a plurality of informational message fields comprise following field: ASYMMETRIC_RATE; FOR_RATE_SET; REV_RATE_SET; FOR_MUX_OPTION; REV_MUX_OPTION; SERVICE_TYPE; FOR_SUB_RATE_N; REV_SUB RATE_N; FOR_PREF_MAX_RATE; REV_PREF_MAX_RATE; FOR_ACCEPT_MAX_RATE; REV_ACCEPT_MAX_RATE; FOR_CURRENT_RATE; REV_CURRENT_RATE; MOV_STATIONARY; And NUM_CON_REC.

According to the system of claim 3, it is characterized in that 4, described NUM_CON_REC occurrence rate comprises following record field: RECORD_LEN; CON_REF; SERVICE_OPTION; FOR_TRAFFIC; REV-TRAFFIC; SERVICE_QUALITY.

According to the system of claim 1, it is characterized in that 5, described informational message field comprises the added field of the hand-off direction message that is used to expand, described added field comprises: RATES_INCLUDED; ASYMMETRIC_RATE; FOR_CURRENT_RATE; REV-CURRENT_RATE; NUMBER_OF_PILOTS; And " pilot tone number " occurrence rate of following field NUM_CODE_CHAN.

6, in having the telecommunication system of a plurality of R-T units, communication between the wherein a pair of R-T unit is carried out on one of a plurality of data channels, each data channel has one first link and one second link, is used for a kind of equipment of configuration data channel, comprising:

A R-T unit is used for receiving on transmission on first link and second link at data channel, and described R-T unit comprises:

First device is used to calling on the described data channel to determine the rate configuration of described first link and described second each bar of link;

Second device is used for determining whether equate in the described rate configuration of determined described first link of described first device and the rate configuration of described second link, and the result of indication positive or negative;

First dispensing device, for responding the indication of positive result of described second device, first message on described data channel comprises the first rate configuration field that the described rate configuration of represent described first link and described second link rate dispose; With

Second dispensing device, for responding the indication of described second negative decision of installing, second message on described data channel comprises the second rate configuration field of the described rate configuration of indicating described first link and represents the third speed configuration field of the described rate configuration of described second link.

7,, it is characterized in that described telecommunication system comprises cellular telecommunication system, and described R-T unit comprises mobile radio station according to the equipment of claim 6.

8,, it is characterized in that described telecommunication system comprises cellular telecommunication system, and described R-T unit comprises the base station according to the equipment of claim 6.

9, a kind of time of signal message and method of signal length of shortening, this signal message has the connection of calling out at cellular system high speed data (HSD) rate business and sets up employed informational message field, this system has the forward direction and the reverse link of the code rate configuration of operation between mobile radio station (MS) and base station (BS), may further comprise the steps:

Determine whether forward direction uses identical rate configuration with reverse link; With

If use identical rate configuration, then the coding of the rate configuration by eliminating reverse link reduces wherein desired independent information message field number and revises signal message.

10, according to the method for claim 9, it is characterized in that described informational message field comprises the ASYMMETRIC_RATE bit field that contains binary bits, and described modify steps comprises the binary bits setting of selecting the ASYMMETRIC_RATE field in the signal message, is to use identical rate configuration with expression forward direction and reverse link.

11,, it is characterized in that utilizing the exchange of the signal message of the professional connection foundation of deciding through consultation to comprise following message step for finishing the HSD calling that MS starts to described BS according to the method for claim 10:

Send service request (setting up rate configuration) signal message from MS to described BS;

If described BS accepts institute's rate request configuration, then:

Send professional (acceptance) signal message that connects from described BS to described MS;

Send professional connection from described MS to described BS and finish signal message;

Thereby finish the HSD that begins by MS and call out connection.

12,, it is characterized in that also comprising according to the method for claim 11: when BS can not provide the institute rate request, BS by one of following messages step suggestion than low rate (the acceptable maximum rate of $):

Send service response (foundation) signal message from MS to described BS than low rate;

Send service request (accepting or refusal) signal message from described MS to described BS;

If the speed that described MS acceptance is advised, then

Send the professional signal message that connects from described BS to described MS; With

Send professional connection from described MS to described BS and finish signal message;

Thereby finish the HSD that begins by MS and call out connection.

13,, it is characterized in that being used to finishing HSD from the MS terminating of BS and call out the message of utilizing the professional connection of deciding through consultation to set up and comprise following message step according to the method for claim 10:

Send service request (suggested rate configuration) signal message from described BS to described MS;

If described MS accepts institute's rate request, then:

Send service response (acceptance) signal message from described MS to described BS;

Send the professional signal message that connects from described BS to described MS; With

Send professional connection from described MS to described BS and finish signal message;

Thereby finish the HSD that starts by BS and call out connection.

14,, also comprise utilize following message MS during HSD calls out to start step that speed decides through consultation again according to the method for claim 10:

Send present rate from described MS to described BS and revise request signal message;

If described BS accepts this request, then:

Send present rate from described BS to described MS and revise signal message;

Send the present rate modification from described MS to described BS and finish signal message;

If described rate of change is impossible, then:

Send the present rate modification from described BS to described MS and be rejected signal message.

15, according to the method for claim 14, if wherein the data rate of the new agreement that draws requires the variation of the Walsh channel of appointment, comprise also that then utilizing present rate modification and present rate to revise finishes additional appointment or the part release of signal message by following switching implementation walsh code from the described exchange of present rate modification message:

Send present rate from described BS to described MS and revise (new speed and sign indicating number channel) signal message; With

Send the present rate modification from described MS to described BS and finish signal message.

16,, it is characterized in that described a plurality of informational message field comprises field: ASYMMETRIC_RATE according to the method for claim 9; FOR_RATE_SET; REV_RATE_SET; FOR-MUX_OPTION; REV_MUX_OPTION; SERVICE_TYPE; FOR_SUB_RATE_N; REV_SUB_RATE_N; FOR_PREF_MAX_RATE; REV_PREF_MAX_RATE; FOR_CURRENT_RATE; REV_CURRENT_RATE; MOV_STATIONARY; And NUM_CON_REC.

17,, it is characterized in that described NUM_CON_REC occurrence rate comprises following record field: RECORD_LEN according to the method for claim 16; CON_REF; SERVICE_OPTION; FOR_TRAFFIC; REV_TRAFFIC; SERVICE_QUALITY.

18, in having the telecommunication system of first and second R-T unit, this first and second R-T unit passes through data channel communication, this data channel has first link and second link that is used for communicating by letter from second R-T unit to the first R-T unit that is used for from first R-T unit to the second R-T unit communication, a kind of method of configuration data channel may further comprise the steps:

In first R-T unit, determine the rate configuration of each bar link in first link and second link for selected communications applications;

Determine whether the described rate configuration of determined first link in the described step of described definite rate configuration and the rate configuration of second link equate, and,

Equate if determine them, then

Send first message to second R-T unit from first R-T unit, described first message comprises the two the first rate configuration field of described rate configuration of the described rate configuration of representing first link and second link; And

If determine that they are unequal, then

Send second message to second R-T unit from first R-T unit, described second message comprises the second rate configuration field of the described rate configuration of representing first link and represents the third speed configuration field of the described rate configuration of second link.

19,, it is characterized in that described first and second message include to set up message request foundation of selected communications applications on data channel between first and second R-T unit according to the method for claim 18.

20, according to the method for claim 18, it is characterized in that described first and second message include status message, represent that the present rate of each link of first and second data link disposes to second R-T unit.

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